酷乐秀优化

cooleshow-app/src/main/java/com/yonge/cooleshow/teacher/controller/TeacherHomeController.java

@@ -163,8 +163,12 @@ public class TeacherHomeController extends BaseController {
                 JSON.parseArray(JSON.toJSONString(teacherHomeStudent), TeacherIndexWrapper.StudentPracticeSummaryExportDto.class);
         DateFormat dateFormat1 = new SimpleDateFormat("yyMMddHHmmss");
         Date date = new Date();
-        String filePath = "/tmp/klx/studentPractice/" + dateFormat1.format(date) + "/"  + studentSearch.getTeacherId() + "_" + LocalDateTime.now().getSecond() + ".xlsx";
+        String filePath = "/tmp/klx/studentPractice/" + dateFormat1.format(date) + "/"  + studentSearch.getTeacherId() + "_" + System.currentTimeMillis() + ".xlsx";
         File srcFile = new File(filePath);
+        File directory = new File(filePath).getParentFile();
+        if (!directory.exists()) {
+            directory.mkdirs(); // 创建目录
+        }
         EasyExcel.write(filePath,TeacherIndexWrapper.StudentPracticeSummaryExportDto.class).sheet("学员练习统计").doWrite(list);
         //上传到oss
         DateFormat dateFormatOss = new SimpleDateFormat("yyyy/MM/dd");